Superfinishing is in excellent lubrication conditions, rotation of the workpiece to a certain speed, while fine-grained whetstone to a certain pressure surface is pressed against the workpiece, and the rotation of the workpiece in the direction perpendicular to the reciprocating motion of a process shocks methods. It has the following features:
1 can effectively reduce the waviness. Superfinishing process, when the stone in contact with the workpiece surface arc is greater than or equal to the wavelength of waviness can be ensured without stone always acts on the crests and troughs in contact, so that the contact pressure peaks, the peak on the convex was removed, thus reducing the waviness.
(2) improving the INA ball bearing raceway groove shape error. Superfinishing can effectively improve the raceway groove shape error, and can be improved about 35%.
3 can be Superfinishing surface stress. Superfinishing process mainly produces cold plastic deformation, and thus the formation of the workpiece surface after Superfinishing residual compressive stress.
4 reduce the surface roughness.
5 ferrule work surface can increase the contact area. Superfinishing, the ferrule contacts the bearing area of the work surface after grinding can be 15% to 40% to 80% to 95%.
6 high production efficiency, low labor intensity, easy to automate.
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